Features:Made of high‑speed steel. Good performance, lightness, heat resistance and toughness. Different drill sizes offer numerous advantages. Suitable for most metals. These drills are packed in hard cases and neatly arranged. According to their length, you can operate them easily and see the drills of the corresponding length at a glance. The drills are suitable for drilling of steel, copper, stainless steel, iron, aluminum, ceramic tiles, acrylic, wood, metal, marble, aluminum alloy. Suitable for face milling, finish milling, machining in carbon steel, alloy steel, tool steel, cast iron and titanium. Specifications: - High speed heat treated carbon steel - Black oxide industrial finished - Size: 14mm, 16mm, 17mm,18mm,19mm, 20mm, 22mm, 25mm - Packaged in wooden case Package Includes: -14mm, 16mm, 17mm,18mm,19mm, 20mm, 22mm, 25mm drill bits -Presented in wooden case Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.